Tool Post Grinder Resources

Birth of the Tool Post Grinder
In 1920, the newly found Dumore Corporation needed a
low cost tool to grind bearing seats on armature and
spindle shafts. Forced to improvise, Dumore engineers mounted a hand grinder on a compound lathe, and the
“tool post grinder” was born. The grinding job could now
be done on an existing machine using a tool that was a
fraction of the cost of a standard grinder – a tradition
that continues today!

Since 1913, Dumore has been designing and manufacturing highly accurate
and reliable drilling and grinding tools for tool room and production needs.
Over 100 years later, that legacy of quality continues.